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Precursor method for polymeric LB films
Author(s) -
Kakimoto MasaAki,
Imai Yoshio
Publication year - 1995
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19950980199
Subject(s) - monolayer , polyimide , materials science , langmuir–blodgett film , polyamide , alkyl , perpendicular , polymer chemistry , chemical engineering , layer (electronics) , composite material , organic chemistry , chemistry , nanotechnology , engineering , geometry , mathematics
First, the general concept of the “Precursor Method” for the preparation of polymeric Langmuir‐Blodgett (LB) films that possess no long alkyl chain between film layers, and the preparation of polybenzothiazole 7 LB film are described. The preparation of 7 LB film was carried out by the same procedure as that used to make polyimide LB films via precursor LB films of polyamides that contain β‐carboxyethylthio alkylamine salts 6. Precursor 6 LB film had a Y type structure with monolayer thickness of 2.8 nm, while polybenzothiazole 7 LB film had 0.34 nm. The nonlinear susceptibility χ (3) of polybenzothiazole 7 LB film in parallel to the dipping direction was 3.8 × 10 −11 esu, whereas the susceptibility in the perpendicular direction was about one fifth of that of the parallel direction.